Recap: 'Tiësto's In The Booth' Season 4, Episode 3

As Tiësto's In The Booth brings fans deeper into the world of dance music's biggest act, we see week after week just how wild Las Vegas parties can get.

After bringing EDC to life in Episode 2, Tiësto kept the momentum going with an unexpected costume idea—dressing up as the elusive DJ Marshmello. "Marshmello is a big mystery. Nobody knows who he is," says Tiësto.

The producer later switched gears and hit up Wet Republic for "the wildest pool party in Las Vegas," courtesy of MGM Grand. Think bikinis, dancing, and lots of booze.